Memory method and apparatus for isolating lithium battery chain explosion

A storage device and lithium battery technology, applied in battery pack parts, secondary battery repair/maintenance, circuits, etc., can solve problems such as battery chain explosion, achieve blocking explosive products, facilitate placement, and reduce wear and tear. Effect

Active Publication Date: 2011-09-14
SHENZHEN BAK POWER BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the batteries are closely arranged, the lateral expansion of the battery volume is limited, and when the explosion products are ejected from the top, under this structure, the explosion products can still fall to the upper surface of the adjacent battery and cause a chain explosion of the battery.

Method used

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  • Memory method and apparatus for isolating lithium battery chain explosion
  • Memory method and apparatus for isolating lithium battery chain explosion
  • Memory method and apparatus for isolating lithium battery chain explosion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as image 3 and Figure 5 As shown, the isolation frame 2 is a whole, and it is provided with three or more supporting feet 21 higher than the height of the battery, so as to ensure that the isolation frame 2 can be placed in the packaging box 1 stably. The upper end of the isolation frame 2 is grid-shaped, and each grid corresponds to an isolation area 22, and each isolation area 22 contains one or more batteries. The grid above the isolation area 22 is placed with a high temperature resistant explosion-proof gasket 3 that breaks away from the isolation frame 22 immediately when stressed.

[0046] When a certain battery A in the first isolation area 221 explodes, because the batteries are closely arranged, the lateral expansion of its volume is limited, and the explosion product 4 is mainly ejected from the upper part. Because the first explosion-proof gasket 31 above the first isolation area 221 is stressed and immediately breaks away from the isolation frame 2...

Embodiment 2

[0051] In order to reduce the chain explosion caused by the explosive product 4 entering the adjacent isolation area from below the isolation shelf 2, an improvement can be made on the basis of the first embodiment.

[0052] Such as Figure 4 and Figure 5 As shown, in this embodiment, the packaging box 1 is provided with horizontal and / or vertical partitions 11 to divide the inner space of the packaging box 1 into smaller isolation areas 22 . Different batteries can be placed in each isolation area 22 according to its size. Place the isolation frame 2 above the partition 11. The grid of the isolation frame 2 just corresponds to the isolation area 22, and a high-temperature-resistant explosion-proof gasket 3 is placed on the grid, and the force is immediately separated from the isolation area.

[0053] When the batteries A in the first isolation area 221 explode, because the batteries are closely arranged, the lateral expansion of their volume is limited, and the explosion ...

Embodiment 3

[0058] On the basis of embodiment two, the present invention can be improved as follows:

[0059] Such as Figure 7 As shown, the partitions 11 arranged horizontally or vertically are made integrally with the spacer 2 and placed in the packaging box 1. The other structures are the same as in the second embodiment, and the working process is also the same. The partition 11 and the spacer 2 are integrated, which is relatively simple to use and does not need to be placed twice.

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Abstract

This invention discloses storage method and device for isolating chain explosion of lithium battery; wherein the method comprises steps of: dividing lithium battery stored in packing box into plural isolation regions; respectively arranging explosion prevention gasket for covering lithium battery in each isolation region, thereby locking explosion product due to battery explosion within respective isolation region, or / and on upper surface of neighboring explosion prevention gasket so as to avoid chain explosion of neighbouring lithium batteries; specifically, when explosion occurs to battery under certain isolation region, explosion product sprayed upwardly bursts through the isolation region to scatter on the explosion prevention gasket of neighbouring isolation regions, thereby avoidingchain explosions. Furthermore, isolation frame of this invention can be disposed on partition in the packing box, or internally formed with the partition; top ends of isolation frame can be free endsor mutually connected. This invention is simple in structure, low in cost, and able to effectively avoid chain explosions.

Description

【Technical field】 [0001] The invention relates to a battery storage method and device, in particular to a storage method and device for isolating chain explosions of lithium batteries. 【Background technique】 [0002] The conventional storage method of lithium-ion batteries is generally arranged in the battery box. However, during storage, lithium batteries often explode due to short circuits, design defects or overheating. Such as figure 1 The medium battery A exploded, and because the batteries are closely arranged, its volume expansion to the surroundings is restricted, and the explosion products (black squares) are mainly ejected from the upper part of A. After the ejected explosion products hit the upper box body or the box cover, they will randomly fall to the nearby battery, such as the upper surface of a, b, c or d, and the conductive substances in it, such as carbon black, graphite, steel foil or aluminum foil fragments etc., it is very likely that these batteries...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M10/42H01M50/209
CPCY02E60/10
Inventor 刘春洋张涛叶正茂胡领坡
Owner SHENZHEN BAK POWER BATTERY CO LTD
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